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| control drill; fanned bottom; fanning bottom; fanning the bottom (of the bore hole); off-bottom rotation; slide drilling; time control drilling; time drilling; time/slide drilling; slow drilling | |||
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| time drilling; slow drilling | |||
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| easing the bit in | |||
| 吊打: 7 phrases in 4 subjects |
| Drilling | 2 |
| Technology | 2 |
| Textile industry | 1 |
| Volleyball | 2 |
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